Photographic-roll holder.



N0. 677,443. Patented July 2, I90I.

a. EASTMAN. PHOTOGBAPHIC ROLL HOLDER.

(Application filed. Aug. 23, 1897.) (No Model.) 3 Shgets8heet W itnesses. I n'ven tor.

EW' M A w W M No. 677,443. Patented July 2 19m.

a. EASTMAN. V PHOTOGRAPHS ROLL HOLDER;

(Application 81nd Aug. 28, 1897.) (Io Iodul.) 3 Shank-Sinai 3.

QKI EE Q 6140K. @W I Attorney.

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UNITED STATES PATENT OFFICE.

GEORGE EASTMAN, OF ROCHESTER, NEW YORK, ASSIGNOR TO THE EAST- MAN KODAKOOMPANY, OFSAME PLACE.

PHOTO'GRAPHlC-RQLL HOLDER.

SPEGlIFICATIONfbrhhing part of-Iietters Patent No. 677,443, dated July2, 1901. Application filed August 23,1891. derial No. 649,147. (lifemodel.)

T 0 all whom, it may concern: Be it known that I, GEORGE EASTMAN, ofRochester, in the county of Monroe and State of New York, haveinventedcertain new and useful Improvements in Photographic-RollHolders; and Ido hereby-declare the following to be a full, clear, andexact description of the same, reference being had to the accompanyingdrawings, forming a part of this specification, and to thereference-niunerals j marked thereon. a

My invention has for its object to provide an improved roll-holder foruse in connection with photographic cameras for holding rolls or spoolsof film,known as cartridgerolls that is to say, those adapted to beplaced within a camera or roll-holder invdaylight and consisting of astrip of flexible sensitive film, preferably transparent, and a strip ofblack paper or similar material wound with the film upon the spool orroll and adapted to cover or protect the back of the film while it is inthe camera, the longer ends of the black paper, which are wrapped aroundthe spool or complete package, covering the film and protecting it fromlight-before'and after exposure. In the use of spools or rolls of filmof this character it has been customary to locate the spoolsin thecamera or holder forward of the back ofthe exposing chamber or apertureso that the face of the film would be in contact with the edges of saidaperture While being wound from one spool to the other, as shown, forinstance, in United States Letters Patent No. 579,949, to F. A.Brownell, dated April 6, 1897; When the film is used in this manner,there is little or no difficulty in properly rolling and nnrolling thespools, because the film itself is in contact with the frame or surface,tending to retardil', and the film is drawn directly upon the windingspool or reel and kept flat against the edge ofthe exposing-aperture,and it matters very little whether or not the black covering-paper movesat precisely'the same speed as the film-that is, the paper may be andusually is loose at the back of the film or between one spool and theother. While this form of apparatus will work well, great difficulty hasbeen experienced in using the cartridge-rolls in holders in which thetable or I support-for holding the film during exposure is forward-i.e., toward the lensof the spools themselves, because in using thefilmcartridges of the ordinary construction and in the usual manner, theblack paper is upon the exterior of both the winding and supply spoolsand, inthis form of holder, is alone in contact with the surface of thetable or support and draws over the edges thereof, said paper takingboth the drawing and retarding strains and leaving the fiLIn loose andnot strained or held taut upon the paper and support, and portionsthereof are liable to be out of focus. The objection is of courseaccentuated as the film and paper are wound upon the receiving-spool,and the result is that the film and paper do not wind evenly on saidspool and one or both are liable to become wrinkled and creased, causinga variation in the movement of the tension on the edges of both the filmand paper at the ends of the spool, and when the tension is not equal atboth ends of the spool the film and paper will wind on the receivingroller or reel crooked, and having once started in this wayin a veryshort time it will overlap the flange of the spool orcatch in the frontframe of the holder, or both, and become torn at the edges. Furthermore,the film and paper being of differcut materials are liable tovariations, due to atmospheric and other conditions, so that it isunsafe to rely upon their proper operation in the roll-holder when woundand drawn in the manner indicated. 8 I have found, and only afterconsiderable experimenting, that if one of the ordinary filin rolls orcartridges with the paper wound on the outside of the film'is used asthe supply-spool and the film and paper after passing over the supportare Wound on the receiving-spool with the film side outward or at theperiphery the objections heretofore point' ed out will be obviated andthe drawing strain coming upon the film itself instead of on the 5 paperwill cause the film and paper to be wound smoothly upon the receivingroller or spool, and by having the longer end of the black paper uponthe supplyspool of increased length, so as to wrap several times aroundthe film when on the winding spool or roller, it eifectually covers theroll or spool of exposed film, and thelatter may be removed from theholderin daylight in the same manner that spools or cartridges areordinarily used in the cameras of the class of ,which the one describedin the before-mentionedBrownell patent is a type.

My present invention therefore'con'sists in i inafter fully described,and the'novel fea-- tures. pointed out particularly in the claims,

at the end of this specification.

In the drawings, Figure l is a top plan View of a holder constructed inaccordance with my invention; Fig. 2, a rear elevation of the same; Fig.3, a longitudinal sectional view on the line a; a of Fig. 2; Fig. 4c, ahorizontal sectional view on the line g g of Fig. 1; Fig. 5, a detailview of one end of theholding-frame removed from the casing; Fig. 6, asectional view on the line 2 z of Fig. 4; Fig. 7, a sectional view onthe line a b of Fig. 6; Fig. 8, 1 a perspective view of the receivingspool or roller and the film and paper.

Similar reference-numerals indicate simiing a threaded end for engagingwith a correlar parts.

i I 1 indicates the frame or casing of the holder, i having at the frontthe usual opening adapted to be closed by a slide or door 2, said casing1 being arranged and adapted by suitable l dinary plate or roll holder.Within the ca'sing is arranged a frame embodying the bottom board 3 andthe top board 4, both being connected to the back or cover board 5, to

flanges, rabbets, &c., to be applied to the? back of a camera after themanner of an orwhich latterare also connected partitions 6, as in Figs.3 and 4, forming at eachend of the frame chambers or receptacles 7 and8, in the former of which is located the supplyspool and in the latterthe receiving-spool or winding-reel.

'9 indicates the film platen or support, atl tached tq and forming partof the holdingframe and arranged forward of the chambers or recesses forthe spools, this support coopcrating with the partitions 6, so as toclose the inner sides of thespool receptacles or chambers, and forming athird chamber 10, which is open at the back of the holder to permit theoperator .to view the indications on the back of the black or coveringpaper of the'spool through an aperture in the supstud 16, passingloosely through the plate 13 and having upon its inner end an angular'ture in one end of the spool.

spool centeringand holding head 17,'adapted to engage a suitableirregularly-shaped aper- The spools are, as usual, composed of alongitudinally-perforated and slotted spindle having flanges or heads 19at the ends for protecting the edges At one end of the chamber 8,containing the winding spool or reel, is a plate 20, hinged to a bracket21, corresponding to the bracket 14, said plate constituting the end ofthe chamber and having upon it a rotatable stud and longitudinallythrough the spool and havspondingly-threaded aperture in the stud 22.

; through a similar one in the end of the frame,

The frame is held within the casing by a I suitable looking orbolt-device, in the present embodiment-consisting of a sliding plate 30,extending around the aperture in the rear of the frame,having thedownwardly-projecting end 31 and the angular perforated lugs 32,.

Arranged upon one side of the casing and in proximity to the detent orratchet wheel 15 on the supply-spool is a'detent or lever 34,

. pivoted upon a stud 35 and having one end adapted to engage with thedetent-wheel 1 5, as'shown in Fig. 6. The other'end of the lever 34 isprovided with-a stud 36, projecting through a suitable'slot in thecasing, the lever being wider than the slot to prevent the entrance oflight. 37 indicates a stop-plate, preferably of spring metal, held uponthe pin 35 at one'end and having on opposite sides of the rear end ofthe catch 34 small lugs or spurs 38,entering the edge of thecasing, saidplate having apertures 39, with which codperates a projection 40 on thelever 36, serving to hold the lever in engagement with or disengagedfrom the detent-Wheel 15, as shown in full and dotted lines in Fig. 6.This detent or lever 34 serves as a means for holding the supply-spool,so that by winding forward the film the lattermay be stretched tightlyover the support. 7 J

In using the device .3 ust described the-open ator places within thechamber 7 anordinary cartridge-spool containing a strip of film (in- 1dicated generally by 41)*with whichis wound a'strip of black paper 42,the film and paper .being wound together, with the paper on the outside,as shown particularly in Fig. 3. The free end of the paper, which, asusual, covers the spool with several convolutions, is drawn over thetable or support and its end secured to the receiving spool or reelmounted at one end upon the stud 22, these operations being performed indaylight. Thef amecontaining io t h e pools is then placediwithinth'ei'casing,

and tminding-ai horw is passed through the casing and spool and screwedinto the stud 22. Then the operator winds paper and film forward untilthe usual indication or number placed upon the back of the paper isvisible I .through the glasscovered aperture in the I back of thesupport. He then moves the detent 34 to the position shown in full linesin Fig. 6, holding the detent-wheel on the supply-spool, and turns thewinding-arbor a partial rotation, thereby drawing the film tightly downon the support, in which position it is held While the exposure is madein the usual lVhen it is desired to wind forward another exposure offilm, the detent-lever 34C 1 supply-spool, as shown in dotted lines inFig. 1

' frame in rear of the support, the hinged plate 3, is within the supplyspool chamber 7, as this does not in any way interfere with the 40rolling or the maintenance of the fihn in a fiat position on thesupport. When the last exposure has been made and the end of the filmhas passed into the receiving-roller, the operator turns the windingarbor or spindle until the last end of the covering-paper42 is woundseveral times around the film, thereby inclosing it and permitting itsremoval in daylight. When the winding spool or roller is removed fromthe holder'by removing the spindle and swinging out the hinged plate 20,care should be taken to prevent the accidental unwinding of the film, asit is more or less elastic, and is then Wound in the reverse directionfrom what it was on the supply-spool.

I claim as my invention 1. In a photographic-roll holder, thecombination with the casing having the front opening, of thefilm-support having the aperture therein, the receiving and supply spoolchambers in rear of the support, and near opposite ends thereof, spoolcenteringand holding devices in the chambers, a ratchet-wheel connectedto the centering device in the winding spool chamber, and a'pawlpreventing its rotation toward the edge of the support, substantially asdescribed.

tion-opening therein, the spool-chambers at the rear of thefilin-support,film-spools mounted in the chambers,each containingsensitized film and opaque paper wound thereon,the film on thesupply-spool being wound inside the paper, and that on the winding-spoolbeing wound outside the paper and the paper being in contact with thesupport as it passes from one spool to the other, ratchet devices forpreventing backward rotation of the windingspool, and amanually-operated detent for arresting the supply-spool, substantiallyas described.

4. Ina photographic-roll holder, the combination with the casing, theremovable frame embodying the film-support, which latter is providedwith the observation-aperture, the cover 5 having the aperturecoinciding with that in the film-support, and the partitions 6 formingspool-chambers, the ratchet-wheel in the winding-spool chamber,and thepawl cooperatin g therewith,and the removable spool-operating spindlecooperating with the ratchetwheel, substantially as described.

5. In a photographic-roll holder,-the combination with the casing havingthe opening, of the removable frame having the film-support, the supplyand winding spool chambers in the at the end of the winding-spoolchamber, the ratchet-wheel and pawl on the plate, the spoolengaging studon the wheel, and the removable spindle extending through the easinginto the supply-spool chamber and engaging the ratchet-wheel,substantially as described.

6. In a photographic-roll holder, the combination with the casing havingthe opening, the removable frame having the film-support andspool-chambers in rear thereof, the hinged plates at the ends of thechambers, the detentwheel on one plate having the projection forengaging a spool, and a movable detent for cooperating therewith, aratchet-wheel on the other plate, a pawl cooperating therewith, aspool-engaging projection on said ratchetwheel, and a removable spindlepassing through a spool-chamber and engaging the ratchet-wheel,substantially as described.

7. The combination with the casing having the opening and the pivotedspool-detent mounted therein capable of operation from the exterior ofthe casing, of the removable frame having the spool-chambers, the hingedplate at the end of the winding-spool chamber, the ratchetwheel and pawlmounted thereon, the removable spindle passing through the casing andengaging the ratchetwheel', the hinged plate at the end of thesupply-spool chamber, the rotatable detentwheel of said chamber,substantially as described.v

5 8. The combination with the casin g having the front opening, theremovable frame having the film-support provided with the aperture, thespool-chambers at opposite ends of the rear side of the support, andspool centering and holding devices therein, of the movablelocking-plate on the frame having t he projecting end engaging thecasing, and v k v v bination with an outer casing open at the 4 rear andhaving'a removableslide for closing the front,'a roll-carrier fitting intherear por-. 55 tion of the casing embodying the top andbotvtomsupports, a front board or film-support tlfiirforated ears, and the pinson the easing with wlifclf sai i ears cooperate, substan- I 5 tially asdescribedf 9. A photographic-roll holder consisting of a casing havingan opening iii the front and a removable slide for covering the same, afilm-support in rear of saidopening havinga 2o sight-aperture therein,and spool-centering;

devices located within the casing in rear of the film-support.

10. A photographic-roll holderconsistin g of a casing having a frontopening, a removable door for the opening, a film-support-in rear ofsaid opening having a sight-aperture arranged centrally thereof, andspool centering 1- the combination with a film --support over which thefilm passes, having a sight-aperture therein, of spool centering andoperating de- 70 vices located in rear of said support and on andwindingdevices in the casing and'in rear ofthe film-support.

3o 11. A photographic-roll holder embodying a casing open at front andrear, a removable slide for covering the front opening and a rollcarrierin the casin g, embodying a back board for covering the rear, havingsecured thereto a film-support lying in rear of and in close proximityto the front opening in the casing and having a sight-aperture therein,and spool winding and centering devices secured to the carrier and inrear of the film-support.

40 12. In a photographic-roll holder, the comleading from the rear boardto "the observation-aperture in the front board.

'bination with an outercasing p e'n" at the 7 having anobservation-aperture, arear board and top and bottom Walls connectingthe front and rear boards, a supply-roll and a take-up 1 spool mountedin the top and bottom walls on opposite sides and an observation-tube13. In a photographic-rollholder, the com arranged in rear of thefrontope-ning in the casing having asi-ght-apertn re therein, spool:centering devicesonthe top-and-bottom supports and in rear of the frontboard, and a rear board having a sight-aperture therein v registeringwith the aperture in the front board and means extending from the frontto the rear board for excluding the light from the spools.

14. In a holder for cartridge-rolls of film,

port are visible from the'rea'r of the support. 7

- GEORGE EASTMAN.

\Vitnesses:

ALICE K. WHITNEY, HENRY A. STRONG.

